---
title: Clustering points
description: Visualize dense services as clusters of points with the <a href="https://github.com/Leaflet/Leaflet.markercluster">L.markercluster</a> plugin. More information about Feature Layers can be found in the <a href="../api-reference/layers/feature-layer.html">L.esri.FeatureLayer</a> documentation.
layout: example.hbs
---

<link rel="stylesheet" type="text/css" href="https://unpkg.com/leaflet.markercluster@1.0.4/dist/MarkerCluster.Default.css">
<link rel="stylesheet" type="text/css" href="https://unpkg.com/leaflet.markercluster@1.0.4/dist/MarkerCluster.css">
<script src="https://unpkg.com/leaflet.markercluster@1.0.4/dist/leaflet.markercluster.js"></script>

<!-- Load Clustered Feature Layer from CDN -->
<script src="https://unpkg.com/esri-leaflet-cluster@2.0.0"></script>

<div id="map"></div>

<script>
  var map = L.map('map').setView([45.526, -122.667], 15);

  L.esri.basemapLayer('Streets').addTo(map);

  //  (new constructor syntax at 2.0.0)
  L.esri.Cluster.featureLayer({
    url: 'https://services.arcgis.com/rOo16HdIMeOBI4Mb/arcgis/rest/services/Trimet_Transit_Stops/FeatureServer/0'
  }).addTo(map);
</script>
